public class Example29 {
    public static void main(String[] args) {
        int[] arr = {9,8,3,5,2};
        System.out.print("冒泡排序前 ：");
        printArray(arr);
        bubbleSort(arr);
        System.out.print("冒泡排序后 ：");
        printArray(arr);
    }
    public static void  printArray(int[] arr){
        for (int i = 0; i< arr.length; i++){
            System.out.print(arr[i] + "");
        }
        System.out.print ("\n");
    }
    public static void bubbleSort(int[] arr){
        for (int i=0; i < arr.length -1; i++){
            for (int j=0; j< arr.length -i-1; j++){
                if (arr[j] > arr[j + 1]){
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
            System.out.print("第" + (i + 1) + "轮排序后：");
            printArray(arr);
        }
    }
}
